Well its about some time that i investigate the secret behind the SST Transmission fluid , since in USA and the OEM called Dia-queen SSTF-1
but , in some countries the same fluid called Castrol BOT 341 and Castrol Transmax Dual .

As you can all see the part number for the Dia-Queen SSTF-1
Is the same for FORD , VOLVO , VW , Chrysler , and the
official name of the fluid that supplied to all the manufacturer above
called RAVENOL - DCT/DSG :

As you all can see in the link above , you could buy this fluid
as FORD Catalog Number : 1490761 or VOLVO Catalog Number : 1161838
and also at VW ece ....And its the identical to the Dia-Queen SSTF-1 and manufactured in the same factory to all manufactures

Today i went to VOLVO dealership to check it & compare with some Dia-Queen SSTF-1 that i have , and after talking with the head mechanic , he told me that i right in 100% and this fluid came in several names ......

So now you can buy this fluid from FORD or VOLVO by catalog number (supplied in the link above - down page ) and compare the price.

i did all this research , since the Dia-Queen cost in israel 110$ for 1 L ,
and the same fluid cost in VOLVO or FORD 28 $ for 1 L !

I just changed the oil last week, took a sample of the new stuff and a sample of the old stuff and was about to send it out to get analyzed. My thoughts were that someone else has to make something with the same composition.

I think mine is driven fairly easy and when I changed it, I noticed it definitly needed changing before 40,000 kms. That was my idea of sending in the old stuff, to see how much it broke down and was contaminated for shits and giggles.

Wow, this is a great find! I wonder if I have some leftover DiaQueen and some of the ford/volvo oil if I can get the two analyzed/compared? What sort of equipment would that require? I have a friend with a PhD in Chemistry and is into cars, might give him a call to see whats involved.

Wow, this is a great find! I wonder if I have some leftover DiaQueen and some of the ford/volvo oil if I can get the two analyzed/compared? What sort of equipment would that require? I have a friend with a PhD in Chemistry and is into cars, might give him a call to see whats involved.

I have a friend that just graduated as a chemical engineer. I'll ask him.

Wow, this is a great find! I wonder if I have some leftover DiaQueen and some of the ford/volvo oil if I can get the two analyzed/compared? What sort of equipment would that require? I have a friend with a PhD in Chemistry and is into cars, might give him a call to see whats involved.

Its written , black on white that the RAVENOL DCT/DSG is filling oil to :

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